A wig head barrier sheet and a method of manufacturing the same and a wig kit

Abstract

The application discloses a wig head dirt isolation protective sheet, a preparation method thereof and a wig set, and belongs to the wig field. The wig head dirt isolation protective sheet comprises a planar sheet-shaped substrate; the sheet-shaped substrate is made of polypropylene melt-blown non-woven fabric material and has permanent negative stationary charges by high-voltage direct-current negative electrode standing; when the sheet-shaped substrate is clamped between the human scalp and the inner net of the wig, the sheet-shaped substrate can be self-adaptively bent to form a concave spherical surface three-dimensional structure matching the human skull contour by the flexibility and shape of the non-woven fabric material, and is adsorbed and fixed to the inner net of the wig by the stationary electrostatic effect. The shape of the sheet-shaped substrate is petal-shaped for fitting half-bald head and full-bald head, and hollow net-shaped elliptical for fitting animation wig. Hemispherical silica gel point-shaped anti-skid structures are arranged on the sheet-shaped substrate as physical limiting redundant structures after the attenuation of the stationary charges in a high-humidity environment. The wig head dirt isolation protective sheet can isolate the scalp dirt, does not affect the service life of the wig, and realizes open-to-use, multi-scene stable use and convenient processing.

Description

Technical Field

[0001] This invention relates to the fields of beauty and daily necessities and wig accessories, and in particular to a wig head dirt-proof sheet, its preparation method, and a wig kit. Background Technology

[0002] During long-term wear of a full-head synthetic fiber wig, dandruff, oil, and sweat produced by scalp metabolism can easily adhere to the inner mesh of the wig and the roots of the hair strands, causing the wig to turn yellow, develop an odor, and breed microorganisms.

[0003] Existing wig anti-slip structures are all directly molded into the wig body, lacking a replaceable, separate consumable material between the human scalp and the wig's inner mesh, thus failing to isolate scalp dirt. While washing the wig can achieve cleaning, frequent washing will cause the hair strands to become dry and break, and the inner mesh to lose elasticity, significantly reducing its lifespan.

[0004] Polypropylene meltblown nonwoven fabric is generally used to make masks, primarily for air filtration. To further improve the filtration effect, electret polypropylene meltblown nonwoven fabric can be used. However, there are currently no reports of electret polypropylene meltblown nonwoven fabric used for filtration being applied to protective lenses for wig heads to prevent dirt from getting in. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a novel wig head dirt-proof sheet, its preparation method and wig kit containing the sheet, which can isolate scalp dirt, not affect the service life of the wig, and achieve ready-to-use, stable use in multiple scenarios and convenient processing.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This invention provides a wig head dirt-proof sheet, comprising a planar sheet-like substrate;

[0008] The sheet-like substrate is made of polypropylene meltblown nonwoven fabric, and the polypropylene meltblown nonwoven fabric has permanent negative electret charges embedded in it through a high voltage DC negative electrode.

[0009] When the sheet-like substrate is worn and held between the human scalp and the inner net of the wig, it can bend adaptively by relying on the flexibility and shape of the non-woven material to form a concave spherical three-dimensional structure that matches the contour of the human head, and is adsorbed and fixed to the inner net of the wig by electret electrostatic effect.

[0010] As a further improvement of the present invention, the polypropylene meltblown nonwoven fabric material is infused with permanent negative electret charge through a high-voltage DC negative electrode tungsten needle array corona electrode electret process.

[0011] The electret process uses a 60-100kV DC negative high voltage; the distance between the discharge electrode of the electret tungsten needle and the sheet-like substrate is 8-15mm.

[0012] Furthermore, the shape of the sheet-like substrate is a petal shape that radiates outward from the center;

[0013] Alternatively, the sheet-like substrate may be shaped as a hollowed-out mesh-like ellipse.

[0014] Furthermore, the petal-shaped sheet-like base has symmetrically distributed willow-leaf-shaped petals near its outer edge, and the tips of the willow-leaf-shaped petals are located on the same ellipse;

[0015] Alternatively, in the middle part of the hollowed-out elliptical sheet-like substrate, the hollowing out adopts an interlaced long strip hollowed-out grid design.

[0016] Furthermore, on the side of the sheet substrate near the human scalp, hemispherical silicone dot-shaped anti-slip structures are discretely arranged as physical limiting redundancy structures after the electret charge decays in a high-humidity environment.

[0017] And / or, a hydrophilic nonwoven sweat-absorbing layer is hot-pressed onto the side of the sheet substrate near the human scalp; when both the hydrophilic nonwoven sweat-absorbing layer and the silicone dot-shaped anti-slip structure are present, the silicone dot-shaped anti-slip structure is located on the hydrophilic nonwoven sweat-absorbing layer.

[0018] Furthermore, in the hemispherical silicone dot-shaped anti-slip structure, the diameter of the bottom surface of each dot is 3-5mm and the thickness is 1mm.

[0019] Furthermore, the sheet-like substrate is made of polypropylene meltblown nonwoven fabric with an areal density of 30-50 g / m² and a thickness of 0.1-0.2 mm;

[0020] And / or, a PET release protective layer is provided on the top and bottom of the sheet substrate respectively, and the PET release protective layer is combined with the sheet substrate and sealed in an aluminum foil bag;

[0021] And / or, also includes matching antistatic insulating gloves.

[0022] The present invention also provides a method for preparing the above-mentioned wig head dirt-proof sheet, wherein the sheet-like substrate is a planar elliptical sheet blank of polypropylene meltblown nonwoven fabric material during the factory processing stage; and negative static charge is permanently imprisoned inside the fibers of the polypropylene meltblown nonwoven fabric material by a high voltage DC negative electrode tungsten needle array corona electrode electret process.

[0023] Furthermore, the electret process employs a 60-100kV DC negative high voltage; the distance between the discharge electrode of the tungsten needle and the sheet-like blank is 8-15mm, ionizing the air to generate negative ions and permanently sealing them inside the polypropylene fiber.

[0024] The present invention also provides a wig kit, including a wig and a matching wig head dirt-proof sheet;

[0025] The wig head dirt-proofing sheet used is the aforementioned wig head dirt-proofing sheet.

[0026] By adopting the above technical solution, the present invention has at least the following beneficial effects:

[0027] 1. Replaceable Dirt-Proofing Material: The sheet-like matrix of polypropylene meltblown nonwoven fabric with built-in permanent negative electret charge serves as an independent dirt-proofing sheet for the wig head. During use, the nonwoven fabric material can bend adaptively to form a concave spherical three-dimensional structure that matches the contour of the human head. It is then adsorbed and fixed to the inner net of the wig through electret electrostatic attraction. With its replaceable dirt-proofing material, it is easy to use and can effectively prevent scalp dirt from directly penetrating the inner net of the wig, thereby greatly reducing the frequency of wig washing and significantly extending its service life.

[0028] 2. Planar mass production + wearable adaptive curved surface structure: Using a planar sheet substrate and electret processing, the difficulty of mold making and mass production is greatly reduced. When worn, it relies on the natural deformation of the material to fit the head shape. Unlike pre-made rigid curved surface parts, it greatly reduces production costs and is an innovation in structural form.

[0029] 3. Directional high-voltage electrode permanent negative charge injection: Unlike general electret nonwoven fabrics used for filtration, this product has specially limited negative electrode high-voltage corona process parameters. The charge polarity is perfectly matched to that of synthetic fiber wigs, and users can achieve adsorption without manual rubbing. This is a brand-new technical application of electret materials in the field of wig fixing. Moreover, while electrostatic adsorption is achieved, mechanical hooking can also be realized to achieve bidirectional self-locking fixation.

[0030] 4. High adaptability of different shapes: The petal-shaped design is suitable for partial baldness (Mediterranean hair loss) and complete baldness, while the hollowed-out mesh oval shape is suitable for anime wigs.

[0031] 5. Dual-mode all-weather fixing structure: Under normal conditions, it relies on permanent electret charge for traceless electrostatic adsorption. In high humidity environments, after the charge decays, the silicone dot-shaped anti-slip structure provides frictional restraint, preventing curling and slippage, thus expanding the application scenarios.

[0032] 6. The optimal critical size brings non-obvious effects: Multiple sets of comparative tests have verified that a silicone thickness of 1mm has the best effect.

[0033] 7. Protective layer structure + aluminum foil bag sealing design: The PET release protective layer is sealed with an aluminum bag to prevent premature charge leakage and loss, ensuring sufficient charge when the product is opened. Attached Figure Description

[0034] The above is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Figure 1 This is a schematic diagram of the planar structure of a petal-shaped wig head dirt-proof sheet according to an embodiment of the present invention;

[0036] Figure 2 This is a three-dimensional structural diagram of a petal-shaped wig head dirt-proofing piece according to an embodiment of the present invention (illustration of adaptive bending after wearing).

[0037] Figure 3 This is a schematic diagram of the planar structure of a hollowed-out mesh oval wig head dirt-proof sheet according to an embodiment of the present invention;

[0038] Figure 4 This is a three-dimensional structural diagram of a hollowed-out mesh oval wig head dirt-proof sheet according to an embodiment of the present invention (illustration of adaptive bending after wearing).

[0039] In the image: 1-sheet-like substrate; 11-willow-leaf-shaped petals; 12-long, openwork strip. Detailed Implementation

[0040] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0041] like Figure 1 , 3 As shown, this embodiment provides a wig head scalp protection sheet, including a planar sheet-like substrate 1; the sheet-like substrate 1 is made of polypropylene meltblown nonwoven fabric material, which has a permanent negative electret charge deposited through a high-voltage DC negative electrode; when the sheet-like substrate 1 is worn and clipped between the human scalp and the inner net of the wig, it can adaptively bend due to the flexibility and shape of the nonwoven fabric material to form a concave spherical three-dimensional structure that matches the contour of the human head, and is adsorbed and fixed to the inner net of the wig through electret electrostatic action (in combination with...). Figure 2 , 4 (As shown).

[0042] The aforementioned wig head soiling protector uses polypropylene meltblown nonwoven fabric as its base material. For its fixation method, it employs a high-voltage DC negative electrode tungsten needle corona electret process to permanently inject negative static charge into the fibers. This eliminates the need for manual friction to generate electricity when the wig head soiling protector is unpacked and used. The electret material releases a large number of electrostatic ions, and under the influence of the electric field, the fine fibers on the surface of the nonwoven fabric stand upright and open. These upright fibers directly hook and wrap around the mesh seams of the wig's inner net. On one hand, it adheres to the net surface through electrostatic adsorption; on the other hand, it relies on the mechanical winding and locking formed by the upright fibers to achieve a two-way self-locking fixation of electrostatic adsorption and mechanical winding. Even if the head sweats slightly and the static electricity diminishes, the fiber winding structure still prevents the protector from shifting or slipping, significantly improving wearing stability.

[0043] The aforementioned wig head protection plate requires no additional fastening, such as chemical adhesives, Velcro, or elastic bands. In particular, the absence of chemical adhesives not only avoids scalp irritation and corrosion of the wig's inner mesh but also makes wearing it easy and convenient. This wig head protection plate can stably hold the inner mesh of mainstream synthetic wigs made of polyester, Kanekelene, and other materials commonly found on the market.

[0044] The sheet-like substrate 1 of the aforementioned head dirt-proof sheet is a flat sheet-like substrate during the factory processing stage, preferably a flat elliptical sheet blank. It can be deformed during the wearing process. The head dirt-proof sheet is placed inside the inner net of the wig. After the wig is worn, under the pressure of the head contour, it is bent by the flexibility and shape of the non-woven fabric material to form a concave spherical three-dimensional structure that matches the contour of the human skull, perfectly fitting the forehead and the curved surface of the top of the skull.

[0045] In a preferred embodiment, a high-voltage DC negative electrode tungsten needle array corona electrode electret process is used to permanently imprison negative static charges inside the fibers of polypropylene meltblown nonwoven fabric, forming the polypropylene meltblown nonwoven fabric material with built-in permanent negative electret charge; the polypropylene meltblown nonwoven fabric material is a polypropylene meltblown nonwoven fabric with an areal density of 30-50 g / m² and a thickness of 0.1-0.2 mm; the high-voltage DC negative electrode corona electret process parameters are: using 60-100kV DC negative high voltage, the distance between the electret tungsten needle discharge electrode and the planar nonwoven fabric blank is 8-15 mm, ionizing air to generate negative ions and permanently sealing them inside the fibers of the polypropylene meltblown nonwoven fabric material, under sealed and dry storage conditions, the effective retention time of the electret negative charge is not less than 24 months.

[0046] The aforementioned wig head protection plates are also designed in different shapes to match different needs. For example, there are petal-shaped wig head protection plates for partial and complete baldness, and hollowed-out mesh oval head protection plates for anime wigs. By designing different shapes, the problems of rigid cut shapes failing to conform to the curvature of the human skull and causing localized suspension and severe slippage after wearing can be avoided.

[0047] Combination Figure 1 , 2 The image shows a petal-shaped protective sheet for the head of a wig. The sheet-like base 1 is shaped like a petal, radiating outwards from the center. In one embodiment, the petal-shaped base has symmetrically distributed willow-leaf-shaped petals 11 near its outer edge, with the tips of the willow-leaf-shaped petals located on the same ellipse.

[0048] The aforementioned petal-shaped wig head protector is a core wig care accessory specifically designed for individuals with partial or complete baldness, including those with Mediterranean-like hair loss. Its design features a unique structure with willow-leaf shaped petals (12 petals in this example, but 8 or 10 petals are also possible, depending on requirements) radiating outwards from the center, perfectly conforming to the curved contours of the head. This design is not only aesthetically pleasing but also incorporates profound practical considerations: each petal precisely covers and protects the bald area on the head, while the natural gaps between the petals maximize airflow, completely solving the problem of stuffiness and lack of breathability associated with traditional fully enclosed wig pads.

[0049] Combination Figure 3 As shown, this is a hollowed-out mesh-like oval head-mounted dirt-proof protective sheet. The sheet-like substrate 1 is shaped like a hollowed-out mesh oval; in one embodiment, in the middle part of the hollowed-out mesh-like oval sheet-like substrate, the hollowing out adopts long strip hollowing out 12, and multiple long strip hollowing out 12 form an interlaced long strip hollowing out grid design; in the edge part of the oval shape, the hollowing out edge naturally forms a triangular or trapezoidal hollowing out form.

[0050] The aforementioned hollowed-out mesh oval head protector is a professional-grade wig lining accessory meticulously designed for anime and cosplay enthusiasts. Its overall structure is a thin, breathable hollowed-out mesh oval head protector with a stylish, interlaced, long, hollowed-out grille design, ensuring both structural stability and exceptional breathability. This design concept aims to address the pain points of cosplayers wearing heavy, non-breathable anime wigs for extended periods, such as scalp stuffiness and excessive sweating, making long-duration wearing experiences like at anime conventions and stage performances more comfortable.

[0051] As a crucial barrier between the colored anime wig and the user's natural hair, the core function of the aforementioned wig head dirt-proofing plate is two-way protection. On one hand, it effectively isolates the user's own hair and scalp secretions of oil and sweat, preventing these impurities from directly contaminating the wig's inner mesh and hair strands. This avoids problems such as dryness, frizz, fading, and decreased elasticity of the inner mesh caused by frequent washing, thus significantly extending the lifespan of the expensive anime wig. On the other hand, it also prevents dyes or chemicals from colored wigs (especially light-colored or special materials) from staining the user's natural hair, protecting the user's hair health.

[0052] The aforementioned wig head protection plate is not only a practical protective tool, but also a testament to a deep understanding and respect for cosplay culture. With its professional design, advanced technology, and meticulous attention to detail, it provides the most reliable equipment support for every anime enthusiast and perfectionist cosplayer, allowing them to focus more on portraying their characters and unleash boundless creativity and passion.

[0053] Experimental studies have found that in humid environments with humidity levels exceeding 65%, electret charges dissipate rapidly, causing the protective film on the wig head to become unstable and prone to falling off. To address the potential instability caused by charge decay in high-humidity environments, as a preferred embodiment, hemispherical silicone dot-like anti-slip structures (not shown in the figure) are discretely arranged on the side of the sheet-like substrate near the scalp, serving as a physical constraint and redundancy structure after the electret charge decays in high-humidity environments.

[0054] Specifically, food-grade hemispherical silicone dot-shaped anti-slip structures can be used, evenly distributed in petal-shaped solid areas or hollowed-out mesh-like oval solid areas. When scalp sweating weakens the static adhesion, these silicone dot-shaped anti-slip structures generate strong physical friction with the inner mesh of the wig, acting as a bottom-supporting and limiting structure to ensure that the pads do not slip, curl, or misalign inside the wig, always firmly covering the area on the top of the head that needs protection.

[0055] In one preferred embodiment, the hemispherical silicone dot-shaped anti-slip structure described above has a single dot bottom surface diameter of 3-5 mm and a thickness of 1 mm. In particular, the thickness of 1 mm is determined by this invention through multiple sets of humidity control tests, representing the optimal critical thickness that simultaneously satisfies the requirements for both the smoothness of the wig's outer surface and the anti-slip limiting friction.

[0056] To facilitate the fabrication of the aforementioned hemispherical silicone dot-shaped anti-slip structure, several circular dots can be pre-set on a flat sheet substrate during processing, and then silicone dots can be applied and cured at the circular dots to form the silicone dot-shaped anti-slip structure.

[0057] In one preferred embodiment, a hydrophilic nonwoven sweat-absorbing layer is hot-pressed onto the side of the sheet-like substrate closest to the human scalp. The hydrophilic nonwoven fabric traps scalp sweat, sebaceous gland secretions, and dandruff, preventing dirt from penetrating into the wig's inner mesh and significantly reducing the frequency of wig washing. When both the hydrophilic nonwoven sweat-absorbing layer and the silicone dot-shaped anti-slip structure are present, the silicone dot-shaped anti-slip structure is located on the hydrophilic nonwoven sweat-absorbing layer.

[0058] In one preferred embodiment, a PET release protective layer is provided on both the top and bottom of the sheet substrate. The PET release protective layer is laminated with the sheet substrate and sealed inside an aluminum foil bag. During storage and transportation, the PET release protective layer can firmly lock in the electret negative charge inside the product layer, preventing premature charge leakage and ensuring sufficient charge when the product is opened.

[0059] In one preferred embodiment, the aforementioned wig head soil-proofing sheet is also equipped with antistatic insulating gloves. This allows for convenient removal of the wig head soil-proofing sheet while wearing the antistatic insulating gloves.

[0060] To ensure the effectiveness of the head-mounted dirt-proof protective plate, it should not be washed or soaked in water. Only use a dry brush to clean surface contaminants. When the electrostatic adsorption strength decreases due to long-term storage, unidirectional rubbing of the substrate surface with nylon fabric can restore the charge density and electrostatic adsorption capacity, and it can also be reused multiple times.

[0061] The aforementioned head-mounted protective sheet is prepared using the following method: The sheet-like substrate is a planar elliptical sheet blank of polypropylene meltblown nonwoven fabric during the factory processing stage; a negative static charge is permanently imprisoned within the fibers of the polypropylene meltblown nonwoven fabric through a high-voltage DC negative electrode tungsten needle array corona electrode electret process. Specifically, the electret process uses a 60-100kV DC negative high voltage; the distance between the discharge electrode of the tungsten needle and the sheet blank is 8-15mm, ionizing the air to generate negative ions which are permanently sealed within the polypropylene meltblown nonwoven fabric fibers.

[0062] The following description uses a petal-shaped wig head diaphragm as an example of a preferred embodiment to illustrate its preparation method.

[0063] 1. Initial sheet blank: Planar elliptical polypropylene meltblown nonwoven fabric is used as the initial sheet blank with a surface density of 40g / ㎡ and a single layer thickness of 0.15mm. Taking the center point as the reference, 12 willow leaf-shaped petal structures are radially and evenly cut. Multiple circular glue positioning holes can be set on the willow leaf-shaped petal structures.

[0064] 2. Electret charge processing: The flat blank is rolled through a tungsten needle array corona electret equipment, where an 80kV DC negative high voltage is applied. The distance between the electrode and the fabric surface is 12mm. Negative static charge is permanently injected into the interior of the polypropylene meltblown nonwoven fabric fibers. After sealing and packaging, it maintains effective adsorption capacity for 24 months.

[0065] 3. Anti-slip structure processing: Food-grade liquid silicone is applied and cured at the circular glue positioning hole position on the flat blank to form hemispherical anti-slip protrusions with a vertical thickness of 1mm and a bottom diameter of 4mm.

[0066] The aforementioned head protection plate for wigs deforms during wear. When the head protection plate is placed inside the inner mesh of the wig, after the wig is worn, it is squeezed by the head contour and adapts to the flexibility and shape of the non-woven fabric material to form a concave spherical three-dimensional structure that matches the contour of the human skull, perfectly fitting the forehead and the curved surface of the skull.

[0067] The aforementioned wig head dirt-proof protective sheet is fixed to the inner net of the wig by electrostatic adsorption of electret negative charge in a normal dry environment, and at the same time achieves bidirectional self-locking fixation through mechanical hooking; in the plum rain environment with 70% humidity, the static electricity decays, and the 1mm silicone dot-shaped anti-slip structure generates frictional resistance with the inner net of the wig, and the protective sheet does not shift.

[0068] This embodiment presents a wig head dirt-proofing sheet with a curved, self-adaptive deformation surface and built-in permanent negative electret charge. It is made by processing a flat blank, adapting the flexible non-woven fabric to form a concave surface, permanently injecting negative charge into the high-voltage electrode, and equipping it with a silicone anti-slip structure. Through the integrated design of flat molding + wearing deformation, permanent electret electrostatic adsorption, and redundant physical anti-slip in high humidity environments, it can be used out of the box and is stable in multiple scenarios.

[0069] The wig head dirt-proofing sheet of the present invention is an independent disposable consumable that can be sold separately or sold together with a wig to form a wig kit including the wig head dirt-proofing sheet.

[0070] The aforementioned wig head protective plate, sandwiched between the scalp and the wig's inner mesh, effectively prevents scalp secretions such as oil, sweat, and dandruff from directly penetrating the wig's inner mesh. This significantly reduces the frequency of wig washing, substantially extends its lifespan, and has strong industrial applicability. It also avoids issues such as static electricity from manual friction, inability to fit curved surfaces, and failure in high-humidity environments, providing a more comfortable, hygienic, and convenient wig-wearing experience for all types of people.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, or alterations made by those skilled in the art using the disclosed technical content shall fall within the protection scope of the present invention.

Claims

1. A wig head dirt-proofing sheet, characterized in that, Including planar sheet-like substrates; The sheet-like substrate is made of polypropylene meltblown nonwoven fabric, and the polypropylene meltblown nonwoven fabric has permanent negative electret charges embedded in it through a high voltage DC negative electrode. When the sheet-like substrate is worn and held between the human scalp and the inner net of the wig, it can bend adaptively by relying on the flexibility and shape of the non-woven material to form a concave spherical three-dimensional structure that matches the contour of the human head, and is adsorbed and fixed to the inner net of the wig by electret electrostatic effect.

2. The wig head soiling protector according to claim 1, characterized in that, The polypropylene meltblown nonwoven fabric material is infused with permanent negative electret charge through a high voltage DC negative electrode tungsten needle array corona electrode electret process. The electret process uses a 60-100kV DC negative high voltage; the distance between the discharge electrode of the electret tungsten needle and the sheet-like substrate is 8-15mm.

3. The wig head soiling protector according to claim 1, characterized in that, The sheet-like matrix has a petal-like shape that radiates outwards from the center. Alternatively, the sheet-like substrate may be shaped as a hollowed-out mesh-like ellipse.

4. The wig head soiling protector according to claim 3, characterized in that, The petal-shaped sheet-like base has symmetrically distributed willow-leaf-shaped petals near its outer edge, and the tips of the willow-leaf-shaped petals are located on the same ellipse. Alternatively, in the middle part of the hollowed-out elliptical sheet-like substrate, the hollowing out adopts an interlaced long strip hollowed-out grid design.

5. The wig head soiling protector according to any one of claims 1-4, characterized in that, On the side of the sheet substrate closest to the human scalp, there are discretely arranged hemispherical silicone dot-shaped anti-slip structures, which serve as physical limiting redundancy structures after the electret charge decays in a high-humidity environment. And / or, a hydrophilic nonwoven sweat-absorbing layer is hot-pressed onto the side of the sheet substrate near the human scalp; when both the hydrophilic nonwoven sweat-absorbing layer and the silicone dot-shaped anti-slip structure are present, the silicone dot-shaped anti-slip structure is located on the hydrophilic nonwoven sweat-absorbing layer.

6. The wig head soiling protector according to claim 5, characterized in that, In the hemispherical silicone dot-shaped anti-slip structure, the diameter of the bottom surface of each dot is 3-5mm and the thickness is 1mm.

7. The wig head soiling protector according to any one of claims 1-4, characterized in that, The sheet-like substrate is made of polypropylene meltblown nonwoven fabric with an areal density of 30-50 g / m² and a thickness of 0.1-0.2 mm; And / or, a PET release protective layer is provided on the top and bottom of the sheet substrate respectively, and the PET release protective layer is combined with the sheet substrate and sealed in an aluminum foil bag; And / or, also includes matching antistatic insulating gloves.

8. A method for preparing a wig head soiling protector according to any one of claims 1-7, characterized in that, The sheet-like matrix is ​​a planar elliptical sheet-like blank of polypropylene meltblown nonwoven fabric material during the factory processing stage; negative static charge is permanently imprisoned inside the fibers of the polypropylene meltblown nonwoven fabric material through a high-voltage DC negative electrode tungsten needle array corona electrode electret process.

9. The method for preparing the wig head soiling protector according to claim 8, characterized in that, The electret process uses a 60-100kV DC negative high voltage; the distance between the discharge electrode of the tungsten needle and the sheet-like blank is 8-15mm, ionizing the air to generate negative ions and permanently sealing them inside the polypropylene fiber.

10. A wig kit, characterized in that, Including wigs and matching wig head protectors; The wig head dirt-proof sheet is the wig head dirt-proof sheet according to any one of claims 1-7.

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